In the previous blog post I described the architecture of the firehose we built in Forward with NodeJS.

At the lowest level each node has to tail a log file.

Tom Hall and I couldn't find any useful cross-platform (i.e. not relying on the unix tail command) node module for that task, so I ended up writing node-tail:

Using node-tail is very simple:

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Tail = require('tail').Tail;

tail = new Tail("fileToTail");

tail.on("line", function(data) {
  console.log(data);
});

node-tail is also available via npm, just install it with:

> npm install tail

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